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Fast Radio Bursts are millisecond bursts of radio radiation at frequencies of about 1 GHz, recently discovered in pulsar surveys. They have not yet been definitively identified with any other astronomical object or phenomenon. The bursts…

High Energy Astrophysical Phenomena · Physics 2016-05-10 J. I. Katz

PSR J1814-1744 is a 4 s radio pulsar with surface dipole magnetic field strength 5.5*10^13 G, inferred assuming simple magnetic dipole braking. This pulsar's spin parameters are very similar to those of anomalous X-ray pulsars (AXPs),…

Astrophysics · Physics 2016-08-30 M. J. Pivovaroff , V. M. Kaspi , F. Camilo

Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown origin. Two possible mechanisms that could generate extremely coherent emission from FRBs invoke neutron star magnetospheres or relativistic shocks far from the…

We have used the unique low frequency sensitivity of the Large Phased Array radio telescope of Pushchino Radio Astronomy Observatory to collect dataset of the single pulse observations of second period pulsars of the Northern hemisphere.…

High Energy Astrophysical Phenomena · Physics 2018-02-19 Kazantsev A. N. , Potapov V. A

We have been conducting the GMRT High Resolution Southern Sky (GHRSS) survey for the last four years and have discovered 18 pulsars to date. The GHRSS survey is an off-Galactic-plane survey at 322 MHz in a region of the sky (declination…

The five-component profile of the 2.7-ms pulsar J0337+1715 appears to exhibit the best example to date of a core/double-cone emission-beam structure in a millisecond pulsar (MSP). Moreover, three other MSPs, the Binary Pulsar B1913+16,…

The era of fast radio bursts (FRBs) was open in 2007, when a very bright radio pulse of unknown origin was discovered occasionally in the archival data of Parkes Telescope. Over the past fifteen years, this mysterious phenomenon have caught…

High Energy Astrophysical Phenomena · Physics 2023-02-28 Di Xiao , Fayin Wang , Zigao Dai

The sizes of pulsar radio pulses in the plane of the sky are determined. This is important not only in relation to the possibility of directly resolving the radio pulses spatially, but also for verifying and placing constraints on existing…

High Energy Astrophysical Phenomena · Physics 2015-06-23 H. L. Hakobyan , V. S. Beskin

The complete absence of radio pulsars with periods exceeding a few seconds has lead to the popular notion of the existence of a high $P$ death line. In the standard picture, beyond this boundary, pulsars with low spin rates cannot…

Astrophysics · Physics 2009-10-30 Matthew G. Baring , Alice K. Harding

A number of different classes of potentially extra-terrestrial bursts of radio emission have been observed in surveys with the Parkes 64m radio telescope, including "Rotating Radio Transients", the "Lorimer burst" and "perytons". Rotating…

High Energy Astrophysical Phenomena · Physics 2012-09-18 Manjari Bagchi , Angela Cortes Nieves , Maura McLaughlin

Recently a large number of hot magnetic stars have been discovered to produce auroral radio emission by the process of electron cyclotron maser emission (ECME). Such stars have been given the name of Main-sequence Radio Pulse emitters…

Solar and Stellar Astrophysics · Physics 2022-08-03 B. Das , P. Chandra , V. Petit

A model of fast radio bursts, which enlists young, short period extragalactic magnetars satisfying $B/P > 2 \times 10^{16}$~G~s$^{-1}$ (1~G = 1~statvolt~cm$^{-1}$) as the source, is proposed. When the parallel component $\bE_\parallel$ of…

High Energy Astrophysical Phenomena · Physics 2017-01-18 Richard Lieu

We report a sensitive search for meter-wavelength emission at 244 and 614 MHz from HD189733b, the nearest known extrasolar transiting planet of `hot-Jupiter' type. To discriminate any planetary emission from possible stellar or background…

Earth and Planetary Astrophysics · Physics 2015-05-13 A. Lecavelier des Etangs , S. K. Sirothia , Gopal-Krishna , P. Zarka

Radio galaxies are intensively discussed as the sources of cosmic rays observed above about 3 EeV, called ultra-high-energy cosmic rays (UHECRs). Here, the key issues from a recent investigation are summed up, where the individual…

High Energy Astrophysical Phenomena · Physics 2019-05-22 Björn Eichmann

We describe the steps involved in performing searches for sources of transient radio emission such as Rotating Radio Transients (RRATs), and present 10 new transient radio sources discovered in a re-analysis of the Parkes Multi-beam Pulsar…

Solar and Stellar Astrophysics · Physics 2015-05-14 E. F. Keane , D. A. Ludovici , R. P. Eatough , M. Kramer , A. G. Lyne , M. A. McLaughlin , B. W. Stappers , .

The long-standing assumption of symmetric radio emission beams from the two magnetic poles of pulsars is challenged by observational evidence of asymmetry and underfill. Direct testing of this symmetry remains difficult for most pulsars. As…

High Energy Astrophysical Phenomena · Physics 2026-05-01 Xiancong Wu , Hongguang Wang , Hao Tong , Rui Luo , Pengfei Wang , Chengbing Lyu , Hai Lei

Fast radio bursts (FRB) are enigmatic powerful single radio pulses with durations of several milliseconds and high brightness temperatures suggesting coherent emission mechanism. For the time being a number of extragalactic FRBs have been…

High Energy Astrophysical Phenomena · Physics 2021-08-23 D. Kostunin , H. Ashkar , F. Schüssler , G. Rowell

To constrain the giant pulse (GP) emission mechanism and test the model of Lyutikov (2007) of GP emission, we are carrying out a campaign of simultaneous observations of the Crab pulsar between gamma-rays (Fermi) and radio wavelengths. The…

High Energy Astrophysical Phenomena · Physics 2010-01-08 A. V. Bilous , V. I. Kondratiev , M. A. McLaughlin , M. Mickaliger , D. R. Lorimer , S. M. Ransom , M. Lyutikov , B. Stappers , G. I. Langston

Fast radio bursts (FRBs) are millisecond-duration pulses originating from cosmological distances. Multi-wavelength counterparts associated with FRBs are important for unveiling their physical origins. Recent observations provide strong…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Z. Y. Zhao , F. Y. Wang , Z. G. Dai

It is shown that the drift waves near the light cylinder can cause the modulation of the emission with periods of the order several seconds. These periods explain the intervals between successive pulses observed in "magnetars" and radio…

Astrophysics · Physics 2009-11-11 D. Lomiashvili , G. Machabeli , I. Malov